Traits taxon details
Didacna grimmi Pravoslavlev, 1939 †
1580401 (urn:lsid:marinespecies.org:taxname:1580401)
accepted
Species
Didacna carditoides var. uralica Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna catilloides Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna catilloides var. obtusa Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna elongatoovata var. bogatschevi Pravoslavlev, 1939 † · unaccepted > junior subjective synonym
Didacna frequens Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna gibba Pravoslavlev, 1939 † · unaccepted (tentative subjective synonym)
Didacna grimmi var. cuneata Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna grimmi var. subquadrata Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna lintriculus Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna naviculata Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna ostroumovi Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna praetrigonoides var. incerta Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna praetrigonoides var. paucicostata Pravoslavlev, 1939 † · unaccepted > junior subjective synonym
Didacna prona Pravoslavlev, 1939 † · unaccepted (tentative subjective synonym)
Didacna roseni Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna roseni var. gibbosa Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna rudis var. elongata Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna rudis var. oblonga Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna subcarditoides Pravoslavlev, 1939 † · unaccepted (subjective synonym)
Didacna subrudis Pravoslavlev, 1939 † · unaccepted (subjective synonym)
- Variety Didacna grimmi var. cuneata Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
- Variety Didacna grimmi var. subquadrata Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
fossil only
Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 245-246, pl. 7, figs 13, 14 [details] Available for editors
page(s): 245-246, pl. 7, figs 13, 14 [details] Available for editors
MolluscaBase eds. (2024). MolluscaBase. Didacna grimmi Pravoslavlev, 1939 †. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1580401 on 2025-04-03
Marine Species Traits editorial board (2025). Marine Species Traits. Didacna grimmi Pravoslavlev, 1939 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1580401 on 2025-04-03
Date
action
by
original description
Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 245-246, pl. 7, figs 13, 14 [details] Available for editors
original description (of Didacna grimmi var. cuneata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 247, pl. 7, figs 13, 14 [details] Available for editors
original description (of Didacna subrudis Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 239, pl. 6, figs 12-15 [details] Available for editors
original description (of Didacna grimmi var. subquadrata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 246-247, pl. 7, figs 15-19 [details] Available for editors
original description (of Didacna catilloides Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 247-248, pl. 8, figs 1-4 [details] Available for editors
original description (of Didacna naviculata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 242, pl. 6, figs 26, 27 [details] Available for editors
original description (of Didacna roseni Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 249-250, pl. 8, figs 9, 10 [details] Available for editors
original description (of Didacna ostroumovi Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 251-252, pl. 8, figs 15, 16 [details] Available for editors
original description (of Didacna subcarditoides Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 260, pl. 10, figs 12, 13 [details] Available for editors
original description (of Didacna frequens Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 261-262, pl. 10, figs 14-17 [details] Available for editors
original description (of Didacna lintriculus Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 263, pl. 10, figs 19, 20 [details] Available for editors
original description (of Didacna prona Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 248-249, pl. 8, figs 7, 8 [details] Available for editors
original description (of Didacna gibba Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 263-264, pl. 10, figs 21, 22 [details] Available for editors
original description (of Didacna roseni var. gibbosa Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 250, pl. 8, figs 13, 14 [details] Available for editors
original description (of Didacna catilloides var. obtusa Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 248, pl. 8, figs 5, 6 [details] Available for editors
original description (of Didacna praetrigonoides var. incerta Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 215-216, pl. 1, figs 19, 20 [details] Available for editors
original description (of Didacna praetrigonoides var. paucicostata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 216, pl. 1, figs 21, 22 [details] Available for editors
original description (of Didacna elongatoovata var. bogatschevi Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 236-237, pl. 5, figs 22, 23, pl. 6, figs 10, 11 [details] Available for editors
original description (of Didacna rudis var. elongata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 238, pl. 6, figs 3-5 [details] Available for editors
original description (of Didacna rudis var. oblonga Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 238, pl. 6, figs 6, 7 [details] Available for editors
original description (of Didacna carditoides var. uralica Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 259-260, pl. 10, figs 8, 9 [details] Available for editors
additional source Nevesskaja, L.A. (2007). History of the genus <i>Didacna</i> (Bivalvia: Cardiidae). <em>Paleontological Journal.</em> 41(9): 861-949.
page(s): 909 [details] Available for editors
additional source Yanina, T.A. (2005). Didakny Ponto-Kaspiya [Didacnas of the Ponto-Caspian Region]. Majenta, Moscow-Smolensk, 300 pp.
page(s): 222-223, pl. 2, figs 16-21 [details] Available for editors
page(s): 245-246, pl. 7, figs 13, 14 [details] Available for editors
original description (of Didacna grimmi var. cuneata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 247, pl. 7, figs 13, 14 [details] Available for editors
original description (of Didacna subrudis Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 239, pl. 6, figs 12-15 [details] Available for editors
original description (of Didacna grimmi var. subquadrata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 246-247, pl. 7, figs 15-19 [details] Available for editors
original description (of Didacna catilloides Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 247-248, pl. 8, figs 1-4 [details] Available for editors
original description (of Didacna naviculata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 242, pl. 6, figs 26, 27 [details] Available for editors
original description (of Didacna roseni Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 249-250, pl. 8, figs 9, 10 [details] Available for editors
original description (of Didacna ostroumovi Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 251-252, pl. 8, figs 15, 16 [details] Available for editors
original description (of Didacna subcarditoides Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 260, pl. 10, figs 12, 13 [details] Available for editors
original description (of Didacna frequens Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 261-262, pl. 10, figs 14-17 [details] Available for editors
original description (of Didacna lintriculus Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 263, pl. 10, figs 19, 20 [details] Available for editors
original description (of Didacna prona Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 248-249, pl. 8, figs 7, 8 [details] Available for editors
original description (of Didacna gibba Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 263-264, pl. 10, figs 21, 22 [details] Available for editors
original description (of Didacna roseni var. gibbosa Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 250, pl. 8, figs 13, 14 [details] Available for editors
original description (of Didacna catilloides var. obtusa Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 248, pl. 8, figs 5, 6 [details] Available for editors
original description (of Didacna praetrigonoides var. incerta Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 215-216, pl. 1, figs 19, 20 [details] Available for editors
original description (of Didacna praetrigonoides var. paucicostata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 216, pl. 1, figs 21, 22 [details] Available for editors
original description (of Didacna elongatoovata var. bogatschevi Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 236-237, pl. 5, figs 22, 23, pl. 6, figs 10, 11 [details] Available for editors
original description (of Didacna rudis var. elongata Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 238, pl. 6, figs 3-5 [details] Available for editors
original description (of Didacna rudis var. oblonga Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 238, pl. 6, figs 6, 7 [details] Available for editors
original description (of Didacna carditoides var. uralica Pravoslavlev, 1939 †) Pravoslavlev, P.A. (1939). <i>Didacna</i> Eichw. drevnekaspiyskikh otlozheniy Baskunchakskogo rayona [<i>Didacna</i> Eichw. from ancient Caspian deposits of the Baskunchak region]. <em>Uchenyye zapiski Leningradskogo gosudarstvennogo universiteta, seriya geologo-pochvennykh nauk.</em> 34(7): 209-274.
page(s): 259-260, pl. 10, figs 8, 9 [details] Available for editors
additional source Nevesskaja, L.A. (2007). History of the genus <i>Didacna</i> (Bivalvia: Cardiidae). <em>Paleontological Journal.</em> 41(9): 861-949.
page(s): 909 [details] Available for editors
additional source Yanina, T.A. (2005). Didakny Ponto-Kaspiya [Didacnas of the Ponto-Caspian Region]. Majenta, Moscow-Smolensk, 300 pp.
page(s): 222-223, pl. 2, figs 16-21 [details] Available for editors
